Plasmid DNA generally contains genetic information that: a. is necessary for prokaryotic cell reproduction b. distinguishes one prokaryotic species from another c. may provide an advantage under some conditions d. is critical for the survival of a prokaryotic cell

Plasmid DNA play a important role for survival of a prokaryotic cell.

Option D is correct one.

Explanation:

In addition to the chromosome, many prokaryotes have plasmids, which are small rings of double-stranded extra-chromosomal ("outside the chromosome") DNA. Plasmids carry a small number of non-essential genes and are copied independently of the chromosome inside the cell. They can be transferred to other prokaryotes in a population, sometimes spreading genes that are beneficial to survival.

For instance, some plasmids carry genes that make bacteria resistant to antibiotics. (These genes are called R genes.) When the plasmids carrying R genes are exchanged in a population, they can quickly make the population resistant to antibiotic drugs. While beneficial to the bacteria, this process can make it difficult for doctors to treat harmful bacterial infections.

the answer is trees if i'm not mistaken

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products